Question

glycogen is a polysaccharide of glucose that serves as a form of energy stored in animal cells. when glycogen is broken down, glucose is produced. some peoples cells are unable to break down glycogen. which of the following would most likely be observed in a person who is unable to break down glycogen?

○ a rapid heartbeat and fast metabolism
○ an inability to digest proteins
○ a low energy level and muscle weakness
○ a swelling of the joints

Explanation:

Glycogen is a storage form of glucose in animal cells. When broken down, it releases glucose, which is a primary energy source. If a person can't break down glycogen, they'd lack this readily - available energy. A low energy level and muscle weakness would occur because muscles need energy (from glucose) to function properly.

• Swelling of joints is related to issues like inflammation (not directly to glycogen breakdown).
• Inability to digest proteins is about protein - related enzymes (not glycogen metabolism).
• Rapid heartbeat and fast metabolism are more related to thyroid function or other metabolic regulators (not glycogen breakdown specifically for energy supply in the context of normal muscle function energy needs).

Answer:

a low energy level and muscle weakness